Dust bag and coupling for vacuum cleaners



W. BARBER DUST BAG AND COUPLING FOR VACUUM CLEANERS Filed June 11, 1929nar WILLIAM BARBER, or nnoomvn, nnw YORK- D'UST BAG- AIN'D COUPLINGFORVACUUM CL 3 a I Application filed June 11,

My present invention relates to improvements in vacuum cleaners.

In the construction of many of the vacuum cleaners the dust and dirtcarried by the air is deposited in a removable, inner dust bag. Thelarge number of diflerent makes of vacuum cleaners necessitates as greata number of inner and outer bags especially madeto accommodate eachindividual make of m cleaner.

It is therefor an object of this invention to provide an outer, and aninner, dust bag having a universal coupling whereby theymay be connectedto any make of cleaner with ease and certainty. p

A further object of the invention is the provision of outer and innerdust bags and a coupling therefor, which may be easily,

simply and cheaply constructed so that the ac combination may bemarketed for a reasonable amount, and of such type that the inner bagmay be destroyed after having been re moved from the outer bag of thevacuum cleaner. With the foregoing and otherfobjects in view which willbecome apparent in the following detailed description and appendedclaims, reference is had to the accompanying drawing for an illustrativeembodiment to of the invention wherein:

Figure 1 is a side elevational view of bags and coupling, with parts insection.

Figure 2 is a bottom plan view of the coupling.

Fig. 3 is a front elevational view of the bag with its flap open.

Referring to the various figures wherein similar reference charactersindicate like parts throughout, it will be noted that the vacuumcleaner, generally designated by 33, has a connecting flange 34 providedwith the usual bolts 35. The companion flangei36 having the collar 37 isfastened to the flange 34 by means of said bolts The universal couplingdesignated .gene

cured, by welding or other means,-to collar 37 of flange 36. Theuniversal cou ling 38 also has a re- 1929. Serial no. 370,021.

duced neck portion 42 near the end of which is an annular groove ordepression, 43.

The outer. bag, designated by the numeral 44, is secured to the collar37 of the flange 36 by means of the band 45. p

The outer bag 44 is provided with an opening 46 throughout the greaterportion of its length and across its upper end 47 The opening 46 isprovided with the zipper fasteners 48. The zipper opener 49 is providedwith an anchor arm 53, and the securing pin 54. To the upper end of bag44 is attached a hanger support 55.. l

,Near the lower end of bag 44, and integral therewith, is the inner bagsupporting member 56, having anannular split ring 57 The inner bag isdesignated generally by the numeral 62 and terminates in a neck por-(ion 63, which conforms to the neck portion 42 of coupling 38. Pressinginto the groove 43 is the flexible band 64. The coupling 38 is providedwith a standard size flange corresponding withthat of. the make ofcleaner to which it is to be applied. Therefore, to equip any cleaner.with my improved device all that is necessary is to change the flangeportion 36. The neck portion 42 is adaptable to all inner bags.As-pointed out the outer bag 44 has a.slit extending from [near itsbottom end to its top end, and across saidtop end 47, (see Fig. 3) saidslit being provided with the zipper fasteners as shown at 48. When theinner bag is to be put in vplace the outer bag is opened and neckportion 63 of the inner bag 62 slipped over the neck'portion 42 of thecoupling 38 until it extends well below the annular groove 43, whereuponthe flexible band 64 is shoved over the neck of inner bag until itregisters with said groove 43 thereby forcing a portion of inner bagneck into the groove and securlng said bag against displacement duringthe process of cleaning. The outer bag may then be closedwith thezipper. Whenthe inner bag has served its usefulness, the outer bagerally by the numeral 38, has a depending ring portion 39, which ispermanently se is openedby releasing theanchor 53 of fasteningmember 49sliding it to the bottom of slit,

pushing. down the flexible band, and taking out the inner bag tocomplete the operation. The inner is reinforced against the inccompressed air by the Supporting members 56 Which consists of twosegments, each segment is provided with a segment of a metal ring, andtends to prevent any rupture of the bag due to the outward exertion ofthe air Within.

It will be understood that various changes in the details of theconstruction may be made Without departing from the spirit of theinvention.

Having thus described my invention, what I claim as new and Wish toprotect by Letters Patent, is:

1. A tubular dust bag having an opening therein, zipper means forclosing and locking said opening, a lining bag of porous material,having a reduced neck portion, a coupling having a reduced grooved neckportion adapted for engagement thereat with the neck of the lining bagand means for disengageably securing said lining bag and said couplingin engagement.

2. A coupling for a vacuum cleaner having an enlarged ring portion and areduced neck portion, said enlarged ring portion being adapted to engagethe inlet aperture of a dust bag, and said reduced neck portion beingadapted to engage the reduced portion of a lining bag, means forsecuring the ring portion of the coupling and the dust bag in engagementand means for securing said lining bag and the coupling in engagement,said coupling being designed so that the mounting and dismounting ofsaid dust bag are independent of the mounting and dismounting of thelining bag.

3. A coupling. for a vacuum cleaner having an enlarged ring portion anda reduced neck portion, said enlarged ring portion beingadapted toengage the inlet aperture of a dust bag and said reduced neck portionbeing adapted to engage the reduced portion of a lining bag, means forsecuring the ring portion of the coupling and the dustbag in engagement,and means for securing the lining bag and the coupling in engagement.

4. A dust bag coupling having an enlarged portion and a reduced neckportion, means for securing a dust bag to said enlarged portion, meansfor securing a lining bag to said reduced neck portion, and meanslocated within said dust bag and attached to said reduced neck portionfor supporting said lining bag.

5. A dust bag coupling for use with a vacuum cleaner having dust andlining bags, 7 having a peripheral grooved reduced neck portion and anenlarged ring portion, means for securing the lining bag to saidcoupling at its grooved neck portion, and means for securing the dustbag to the enlarged ring portion.

6. A dust bag coupling for use with a vacuum cleaner having dust andlining bags, having a peripheral grooved reduced neck portion and anenlarged ring portion, means for securing the lining bag to saidcoupling at its grooved neck portion, means for securing the dust bag tothe enlarged ring portion, and means located within said dust bag andattached to said reduced neck portion for supporting said lining bag.

7. In a vacuum cleaner structure a coupling having a reducedperipherally grooved neck portion and an enlarged ring portion thereon,a dust bag having an opening along one side and partly across the topthereof, means to secure said dust bag to said coupling at its enlargedring portion, means to close the opening in said dust bagwhich extendsalong the side and partly along the top thereof, a lining bag, meansdisposed within said dust bag and aflixed to said reduced neck portionof the coupling for supporting said lining bag, and means adapted tosecure said lining bag to the coupling at its peripherally groovedreduced neck portion.

In testimony whereof I have signed my name to this specification.

WILLIAM BARBER.

